condition mean min max 4 h after light 2670.8 2670.8 2670.8 8 h after light 2668.7 2505.0 2832.4 12 h after light 2166.3999999999996 1914.6 2418.2 4 h after dark 2050.95 1848.3 2253.6 8 h after dark 2159.4 1960.7 2358.1 12 h after dark 2331.2 2244.8 2417.6